AWG 23 Wire
Diameter 0.0226″
Millimeters 0.574 mm
Cross-section 511 cmil
mm² 0.2588
Nominal bare-conductor dimensions per ASTM B258. AWG is geometric: d = 0.005 × 92(36−n)/39 in with n = 23; area is derived from the diameter. Ampacity depends on insulation, bundling, and the electrical code in force — it is a property of the installation, not the gauge.
Neighboring gauges
| AWG | Diameter | mm | vs AWG 23 |
|---|---|---|---|
| 21 | 0.0285″ | 0.724 | +0.0059″ |
| 22 | 0.0253″ | 0.643 | +0.0027″ |
| 23 | 0.0226″ | 0.574 | — |
| 24 | 0.0201″ | 0.511 | −0.0025″ |
| 25 | 0.0179″ | 0.455 | −0.0047″ |
Measuring sheet metal, not wire? Sheet uses a different gauge scale — see 23 gauge sheet (steel: 0.0269″).